Hostname: page-component-6898cfcb55-w5hgh Total loading time: 0 Render date: 2026-11-12T03:54:20.744Z Has data issue: false hasContentIssue false
  • English
  • Français

Improved Refractive Index from a Planar Leaky Wave-Guide Coupler

Published online by Cambridge University Press:  10 February 2011

Tao Liu and
Robert J. Samuels
Tao Liu
Affiliation:
School of Chemical Engineering, Georgia Institute of Technology Atlanta, Georgia 30332-0100
Robert J. Samuels
Affiliation:
School of Chemical Engineering, Georgia Institute of Technology Atlanta, Georgia 30332-0100
Get access

Abstract

Modal loss coefficients for a planar leaky wave-guide are obtained by two new methods. One is a numerical calculation combining optical thin film theory with optical wave-guide theory; another is an analytical derivation based on analogy to Beer's law. Considering the influence of the modal loss, a modified mode equation for the planar leaky wave-guide is obtained, which greatly increases the accuracy of the refractive index and thickness of the thin film in a planar leaky wave-guide coupler (prism I film I substrate).

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

(1) Tien, P.K., Applied Optic 10, pp. 2395–2413 (1971)Google Scholar
(2) Ulrich, R. and Torge, R., Applied Optics 12, pp. 2901–2908 (1973)Google Scholar
(3) Kersten, R. Th., Optica acta. 22, pp. 503–513 (1975)Google Scholar
(4) Kersten, R. Th., Optica acta. 22, pp. 515–521 (1975)Google Scholar
(5) Burzynski, Ryszard , Prasad, Paras N. and Karasz, Frank E., Polymer 31, pp. 627–630 (1990)Google Scholar
(6) Ulrich, R. and Prettl, W., Appl. Phys. 1, pp. 55–68 (1973)Google Scholar
(7) Ward, L., The Optical Constants of Bulk Materials and Films, Second Edition, Institute of Physics Publishing, 1994, pp. 166–180 Google Scholar
(8) Born, M. and Wolf, E., Principles of Optics, Fourth Edition, Pergamon Press, 1970, pp. 40 Google Scholar
(9) Swalen, J.D. in Materials Characterization and Optical Probe Techniques, edited by Lessard, Roger A. and Franke, Hilmar (SPIE. Proc. CR69, San Diego, CA, 1997), pp. 463–479 Google Scholar